Railway car brake



Aug. 25,. 1931-. w. H. LAWIHRENCE 1,820,196

RAILWAY CAR BRAKE Fi led Jan. 21. 19'29 Patented Aug. 25, 1931 UNITED STATS WILLIAM HENRY LAWRENCE, or OKLAHOMA CITY, OKLAHOMA RAILWAY GAR BRAKE Application filed January 21, 1929. Serial No. 333,979..

The object of the invention is to provide an improved arrangement of connecting the shoe-actuating bar to the shoe, primarily to prevent the disconnecting of the bar and the shoe, and also to allow quick assemblage, and

to obviate, by said connection, the usual vibration.

Figure 1 on the drawings shows a perspective view of the shoe, and its parts, and the method of applying the same;

Figure 2 is a perspective view of a. fragment of the bar or hanger, and

Figure 3 is a side view of the shoe, partly in section.

Referring to the drawings the numeral 1 designates the body of the device and which body is provided with a bearing 2, for receiving the radius rod 3, and above this bearing is an undercut housing 1 having seats 5 to receive the integrally formed pin 6 that is formed with the brake shoe hanger 7.

This brake shoe hanger will be formed before attachment to the body 1, and will be inserted through a transverse slot 8 near the outer or upper edge of the body 1, and then along a central slot 9 which connects with the slot 8 and also with the under cut portion of the housing 4. By this means, the pin 6 can be quickly and easily set in place.

When this is done, the facing 10 is applied in the usual way, and fastened to the body 1 at the In 11, and onto the side of the body.

With t is arrangement the brake face 10 may be quickly removed, and the brake hanger pin slipped out of the undercut housing 4, along the slot 9 and out of the transverse slot 8, and this can be quickly done Without disturbing the balance of the brake construction, or the appurtenances thereof.

The transmission of power to cause the shoe-facing 10 to positively grip the peripheral face of the wheel is positive because the pull on the brake-hanger is a central one with respect to the brake body and face. The 45 construction of the brake hanger 7 will pre vent shearing, as contrasted with the usual Having set forth the invention, I claim:

of a T-slot in the body.

1. A brake shoe construction consisting of a brake-shoe body having a combined transverse and centrally located slot in union, and associated with the under cut of a housing formed on the brake shoe, a brake hanger having a pin for engagement with the undercut housing, said hanger being adapted to be inserted intothe transverse slot, passed along the central slot for insertion into thehousing, and reversedly withdrawn at will, a brake shoe facing for holding the hanger and pin on the shoe and means to hold the facing to the body of the shoe.

2. A brake shoe construction comprising a body member, a radius rod connected to sald body member, a shoe actuating bar, said shoe actuating bar having its end provided with an enlargement, said enlargement being disposed in an enlarged chamber at one end q 3. A brake shoe construction comprising a body member, means for supporting said body member, a shoe actuating bar connected to the body member, said shoe actuating bar being disposed in a recess in the inner face of the body member, said recess having a T slot extending therethrough and in communication with the recess, an enlargement carried by the actuating bar and disposed within the recessand means for maintaining said enlargement in said recess.

4. The combination with a brake shoe body, means for supporting said brake shoe body, a shoe actuating bar, of means for connecting one end of said bar to said body, said means comprising transverse lugscarried by said end of said bar, said transverse lugs being disposed in a recess in the underside of the body, said body having a T-shaped recess extending entirely therethrough with one of its branches in communication with the recess and means for maintaining the transverse lugs in the recess.

5. The combination with a brake shoe body, means for supporting said shoe body, a shoe actuating bar, of'a lug and slot con nection between the bar and body and comprising a T-shaped slot extending through the body and terminating in a recess in which the lug is received and means for holding said lug in said recess.

6. The combination with a brake shoe body, a shoe actuating bar, of means for connecting said shoe actuating bar to the body, said means comprising a T slot extending through the body and terminating in an upwardly extending recess in the under face of the body, lugs carried by the. bar and disposed in said recess and a removable face plate con-- nected to the body and forming means for;

maintaining the lugs in the recess.

In testimony whereof, I have hereunto set my hand this 11th day of January, 1929.

WILLIAM HENRY LAWRENCE. I 

